Measurement E213M958
| Experiment: | E1-6, 2025 | |
|---|---|---|
| Year: | 2001 | |
| Spokespersons: | R.W. Gothe, A. Trivedi | |
| Reaction: | ep → π+π−p | |
| Polarization: | none | |
| Quantity: | dσ/d(−cos(θ(π−))) | |
| Q2: | 3.5 — 4.2 GeV2 | |
| W: | 1.45 — 1.475 GeV | |
| Ebeam: | 5.754 GeV | |
| θ(π−), [deg] | dσ/d(−cos(θ(π−))), [μb/rad] | uncertainty | syst. uncert. | total uncert. |
|---|---|---|---|---|
| 9.0 | 0.6851 | 0.1035 | 0.1926 | 0.2186 |
| 27.0 | 0.7475 | 0.0764 | 0.1205 | 0.1426 |
| 45.0 | 0.656 | 0.0639 | 0.0942 | 0.1138 |
| 63.0 | 0.518 | 0.1346 | 0.0699 | 0.1516 |
| 81.0 | 0.5408 | 0.056 | 0.0701 | 0.0898 |
| 99.0 | 0.5028 | 0.0401 | 0.0657 | 0.077 |
| 117.0 | 0.5758 | 0.0458 | 0.0732 | 0.0863 |
| 135.0 | 0.6187 | 0.0522 | 0.0789 | 0.0946 |
| 153.0 | 0.5552 | 0.0588 | 0.0769 | 0.0968 |
| 171.0 | 0.6394 | 0.093 | 0.1289 | 0.159 |
Experiment comment: